Arsenio’s ESL Podcast: Season 4 – Episode 126 – Grammar – Prepositions in Relative Clauses

When we need a preposition with the relative pronouns which, whom, or whose, the preposition can come before the relative pronoun. This is generally more formal.

I studied with an American professor from whom I learned many fascinating things. = more formal.

I studied with an American professor who I learned many fascinating things from. = less formal.

This is the office in which I worked. = more formal

This is the office which I worked in. = less formal

We cannot use that after prepositions.

After a preposition, who become whom.

Prepositions appear in several noun phrases which contain relative pronouns, e.g.

some of which/whom, many which/whom, most of which/whom, the first/last of which/whom.

They also appear in several adverbial phrases which contain relative pronouns, e.g.

In which case, at which point, for which reason.

Rewrite these sentences to make them more formal.

  1. The recruitment officer is the person who I spoke to.
  2. She is the teacher whose class I studied in.
  3. They are the colleagues that I worked with.
  4. The director was a person I had great respect for.
  5. There are some things that we have no control over.

Podcast

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